Echinoderm Quiz

Question 1

Chaeta?

Answer 1

Long hairs

Question 2

gnatha?

Answer 2

jaw

Question 3

Xeno?

Answer 3

foreiner

Question 4

Turbella?

Answer 4

Rotated

Question 5

Derma?

Answer 5

Skin

Question 6

Hemi?

Answer 6

Half

Question 7

Homo?

Answer 7

Single

Question 8

zoa?

Answer 8

Animal

Question 9

placo?

Answer 9

plated

Question 10

idea?

Answer 10

in the form of

Question 11

Crino?

Answer 11

lilly

Question 12

Astero?

Answer 12

Star

Question 13

Holo?

Answer 13

complete

Question 14

What is a homolozoa?

Answer 14

single animal
Has a cillary groove (eats microorganisms)
Suspension feeder (filter)

Question 15

What is heleoplacoidea?

Answer 15

rotated plated in the form of
suspension feeder
3 cilliary grooves

Question 16

What is Crinoidea?

Answer 16

lilly in the form of
ambulacar grooves (random arms movement)
Suspension feeder
Seditary (stays in place)

Question 17

What is Asteroidea?

Answer 17

star in the form of 
5 arm symmetry joined at a central disk
External digestion (carnovour)

Question 18

What is Ophiuroidea?

Answer 18

offering up in the form of
Arms lengthen and become more flexable to provide movement
Suspension feeders

Question 19

What is Echinoidea?

Answer 19

hedgehog in the form of
Arms fuse to form a ball
Ossicles lengthen for protection and movenment
Herbivour

Question 20

What is Holothuroidea?

Answer 20

Complete passage way in the form of
Minimized ossicles
Mussle wall thickens for structures and movement
Detritavour (eats decaying matter)
Uses excretory system to poo

Question 21

What two orders are extinct?

Answer 21

Homolozoa

Heleoplacoidea

Question 22

What is the other name for Crinoidea?

Answer 22

sea lilies

Question 23

What is the other name for Asteroidea?

Answer 23

sea star

Question 24

What is the other name for Ophiuroidea?

Answer 24

Brittle Star

Question 25

What is the other name for Echinoidea?

Answer 25

Sea Urichins

Question 26

What is the other name for Holothuroidea?

Answer 26

Sea Cucumber

Question 27

What is an ossicle?

Answer 27

boney; spikes

Question 28

What is the water vasscular system?

Answer 28

Water goes through the Madreporite (drain looking thing) through the stone canal where it is transported around the ring canal to all the 5 radial canals. It fills up ampulia (where water is held). When the sea star needs to move, water releases out of the ampulia.